Reclaiming process for used crank-case oil



Patented Mar. 13, 1928.

1,662,7Ill

WILLIAM H. ELLERINGTON, OF NAP.LES, NEW YORK.

RECLAIMING iRlR'OCIESS FOR USED"CR ANK GAiSE -,0IL.

NoDrawing.

The ,present invention {relates to anew and improved process for purlfying lubricating. oil which has become contaminated ,by usewith various impurities.

In the use of automobiles, tractors, trucks, and internal combustion engines, oil must necessarily be used ,zt'or .lubricatingpurposes, particularly about the ,bearings .1 and zcylinders of the engines. lowing to the igreat heat caused by the combustionofthe fuelto propel the motors, ,much of the oil ,film about the cylinders 3finallybecomespartially, or entirely destroyed for lubricating purmass and is eliminated throu hithe valves 1 i i .n

in the form of carbonand gas, ,yet ,muchof ithe carbon of the gas and lubricating oil is carried down by the cylinder and rings, helped .byithe explosion. of the fuel, into the oil reservoir or crank caseof the-motor, and, through the movements of the mechanism of the machine, becomes tl'ioroughly mixed, not ,alone with the good clean oil of the crank case, but also becomes incorporated with the sand, grit,.and road dustthat isfinhaled along with theair that enters the .motor through theacarburetor and crankcase breather. Particles of ,metal, ,produced by the rubbing of moving parts,alsoiaccumulate A with the carbon, dust and original impurities of the oil, and thus soon contaminate the lubricant. The lubricant thus becomes unlit, and highly injurious for the purpose for which it was intended. This is the real reason that manufacturers of cars demand that oil should be renewed every five hundred miles, or less, which is often done, and in consequence, millions of gallons of oil is cast on the ground, or in other ways wasted, that through my methods might be reclaimed, made more pure than at first, and turned back into a long life of usefulness in internal combustion engines, or returned to the crank case of the automobile, truck, or tractor, or used to lubricate bearings wherever machinery may be found, for after the black useless oil is purified, cleaned, and reclaimed by my method it may be redistilled t0 possess such specific gravity as desired.

In describing my method of obtaining the good oil from a fifty gallon barrel of used and discarded oil, I will state that the same procedure will hold good, in greater or less amounts, bearing in mind the same proportions, more or less, as there is nothing vitally 1 exacting within reasonable amounts. In used oil it will be noticed that there is always a iApplicatien filed/Janua1w2'3n1326. ,Seiial No. 83,400.

.suflicient vamount of carbon remaining in esuspensionim the 011 to benoticeableto the unaided eye. afiinityfor the carhon,*=a nd other waste, and uselessmatter is prepared that-will addsolne'of its own-weightto-the flight ,and. harmful material in the .oil, ,and -.drag. them with itself down beneath thesurface of the oil, which will remainon top'oiE all things. both suspendedin the oilforrnerl and all. things. that were-added. for. the worl ing .of the cure.

I .take a fifty .gallon barrel containing about .forty .five gallons of used oil, and :ele- I vateit three to four teet and layit onits side, (or stand it on .end if more convenient) .withrlarge bunghole up, and small spigot down. .I will have, itwill .be noted about space .suiticient .t'or adding five gallons of purifying solution, which I .prepare in the following. .waynsing the following ingredients in about or substantially the proportions given y g Palm or=eottonseed oil 3 lbs. Caustic 'soda94% 8 ozs. "lVater... 16-ozs.

Dissolve thesoda in the water and .keep the solution at 9,0 F. temperature. Narm the palm or cotton seed oil t0"90 F. Pour Ounces. Sodium silicate 8 Talc powder 8 Mix thoroughly, and the purifier is now ready for use, by simply adding it to the oil to be treated, and stirring, allowing to settle,

and then drawing the purified oil from the top with a syphon. It is advisable to first add to the oil about two or three ounces of aqua ammonia, and thoroughly stir and agi-v ill-l) 

